面向电网调峰辅助服务的空调负荷调控策略及其虚拟机组建模

Control Strategies of Air-Conditioning and Model of Virtual Power Plant for Power Grid Peak Clipping

随着我国经济结构的调整,不断攀升的空调负荷成为第三产业和居民用电量增长、电网峰谷差拉大和负荷特性恶化的主因,同时随着电力能源的清洁发展,将空调负荷调控纳入电网调峰辅助服务,有利于改善电网负荷特性、促进电网安全稳定经济运行。文章首先基于已有空调负荷基本模型,从中央空调功耗特性出发,构建了中央空调调控策略及其定量决策模型;接着,基于中央空调调控策略,从调度特性指标及其量化分析与中央空调调度出力控制等方面,建立了便于调峰调度的空调负荷虚拟机组(air-conditioning load virtual power plant,ACVPP)模型;最后,以算例仿真验证了中央空调调控策略的有效性及ACVPP模型的出力效果。

With the economic structure regulation of China,the increasing air-conditioning load has become the main factor that leads to the growing of tertiary industry and residential power consumption,extension of seasonal peak-valley difference,and deterioration of load characteristics.Thus,air-conditioning load can be regarded as one of the demand-side resources for power grid ancillary services,which will improve the power grid load characteristics and promote safer and more economic operation.Firstly,on the basis of the basic air-conditioning load model,this paper constructs the control strategies of central air-conditioning considering its consumption characteristic.Secondly,air-conditioning load virtual power plant(ACVPP)is modeled on the basis of proposed control strategies from the aspects of dispatched index and power output control.Last,the effect of proposed control strategies and ACVPP power output is verified with a simulation.